body{
    text-align: center;
}
#myElement{
    margin: 50px;
    height: 200px;
    width: 200px;
    background-color: yellow;
    border: 2px solid blue;
    text-align: center;
}
#innerElement{
    height: 30px;
    width: 30px;
    position: relative;
    top: 10px;
    left: 10px;
    background-color: green;
    border: 2px solid blue;
    text-align: center;
}
p{
    margin: 10px;
    font-size:larger;
}